Lathe.



10.858,358. y PATENTBD JUNE 25, 1907. F. J'. BARNBTT.

Y LATER.

vAPPLIOA'LIOI FILED SEPT. Z6, 1906. v 'mums-s113111' 1.

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ATTOH NEYS LATHE.- APPLICATION FILED SEPT. 2s, 1906.

' F.J.BARNBTT.

WITNEEEEEII K No. 858.358. EATENTED JUNE 25, 1907.

- E. J. BAENETT.

vLATHB.

APPLICATION EILED SEPT. 26, 1906.

7 SHEETS-SHEET s.

INVNI'OR A-r'roFxNEYs.

PATBNTED JUNE 25, 1907.

' F. J. BARNETT.

LATHE.

APPLIOATION PII,BDSEPT.26,1906.

7 SHEETS-SHEET 4.

PIEVE- f6 INVENTOR WITNEIEEEE:

A PATBNTED JUNE 25, 1997. F. J'. BARNET'I. v

LATHE. APPLICATION FILED SEPT. Z6, 1906.

7 SHEETS-SHEET 5.

anvers-ron AT1-ahum m5858358., v -PATENTBD JUNE z5. 1907.1

F. J. BARNBTT.

y l. iNvEN-ron 47;.

1' A ATTORNEY;

" UNITED STATES .PATENT OFFICE.;

.. i ifiiANKJ. BARNETT, oF WILKINSBURG,PENNSYLVANLi.

. Specification of Letters Patent.

Patented June25, 1907.

Be it known that L'FRANK'J. BARNETT, a` citizen of the UnitedStates, residing at Wilkinsburg,` in the 'county of Allegheny and State of Pennsylvania, have invented or discovered new and useful Improvements in Lathes, of which the following is a specification.

` My invention relates particularly 'to lathes for automatically turning corks in imitation of champagne corks cut b y hand. Such corks are required to havethe sides more or less flat and the corners rounded.

It is the object of'm such corks automatica] y from. rectangular blanks and it involves mechanism for feeding the blanks to the chucks for. resenting the chucked blanks to the cutter; orcuttin the corners round and the sides at; for r easing the finished corks; and for resetting the.

chucks, in position to `receive a fresh blank. f

While n1 machine is especially ada ted, for the wordescribed it may be utilize for` cutting other shapes t an that described by changing the shapes of" the cams or by omitting the same.. The tool may be a circular'kiufe, as shown, or aA xed knife, a disk Referrili tral vertical "section of my-invention Fig. 2,

' a similar section at right angles to the section of Fig. 1; Fig.'3, a plan thereof; Fivi, ig;

a section showing the machine support;

5, a detailsection showin the-means for tightening the feed belt; ig. 6, a perspective of a finished cork; Figs. 7, 8, and 9,

developments of the cam flange 15, the cam flange 36, and the Cain-38resp'ectivel Fig. iiowing.

- thedevice for causing the interrupted ear- 10, a .detail section,.p'artly in plan, s

ing to mesh; Fig. '11, 'an elevation loo ing toward the left. on Fig. 2,2 the cutter being omitted; Fig. 12, an? elevation .lookin v toward the right on Fig. 2.,v the cutterv eingv omitted and Fig. 13, an elevation looking to the right onFig; 1 1, the Ycutter being omitted. f s` On the drawings1 represents .a vertical post like standard which supports a large part of the mechanism of my im rovements. hisstandard may 'be supporte `in any defollows: I providea metalbar 2, havingl thereon laterally'- extending sleeve N3,

machine to lmakesired manner, but I prefer to support it as* which is cut at 4 entirely through at one side where it has a pair of lugs 5 to receive the clamping screw 6. Within the sleeve 3 is the horizontal bar 7, which is held securely in any axial adjustment thereof by the screw 6 in 'nan obvious manner. l The bar 7 is provided with a vertical opening inwhich the standard 1 is secured in any desired vertical adjustment byy the'set-screw 8, and prevented from rotation .I

by the Vkey 9 seated inverticalslots in both the standard '1 and the bar 7. By this arrangement I can adjust the mechanism to compensate for the wear of the knife and for v bolt 10, having. one end screwed-in the standard and the other end passed through th( fixed bar 11, to which it is secured by the nat'12..

The bar 11 may bess` fured to any suitable device Which'will hold the-same stationaryLV Fixedly` secured to the ,standard 1l is the cam 13 prevented fro `n rotation'bythe key 14 fitting inthe standard and the cam. l

This cam has a yvertical circular flange'` 15,

whose u er or working face is shown devel-Vv`v oped'in 1g. 7. It has a short deep portion 16 and a long, high portion with the three steps 17, 18, and 19, thersttwoof e ual len A h and4 the'thiidof a length equa to` bot the steps 17 and 18.

Loosely mounted on' the standard 1 isthe sleeve 20, to whose lower end is keyed lthespur-gear 21.- The lower face ofthe gear 21 has secured thereto by the screws 22 the sup-n port' 23 for the horizontal pin 24, which carries the anti-friction roller 25, secured to the pin by the-washer 26 and the screw 27..v The roller 25 travels on the cam surface 15 and supports the ,sleeve 20 and all parts carried thereon. The hub of the gear 20 has secured,

thereto the eccentric disk or cam28 having the depressed track 29 in its eriphery and adjustable around the said hu the set-screw 30. f.

On the sleeve 20 above. the cam 28 is the by means lof i spur-gear 31" adjustable on the sleeve `by means of the set-screw 32. -Seated ori-the sleeve 20 betweexthe horizontal ange 33: at

its upper end an the; gear'31 is the cam 34,

adjustable on the sleeve 2O by the set-screw 35. The cam surface is on the under side of the horizontal flange 36 and is sl1ow'n. .devel``-A oped on Fig. 8. ,i It has the downwardly ex` v lug37 which sharply descends to the- IOS I' l while permitting it horizontal lflange on' one side and more l v gear.4 42 carries 'the housing 44, in whichA is mounted the roller 45, which rides on the upper or working face of the cam 38. The said face 'of the cam is showndeveloped on Fig. 9. It has four elevations 46, corresponding to the four sides of a cork-blank, hereinafter to be described. The sleeve 41 has the flange 47 which rests on the hub of the gear 42.

' The loose ring 48 encirclesl the standard 1 and rests on the flange 47and supports -the sleeve-like projection 49- on the under side of the table l50. lBetween the sleeve 49 and the standard isv the bushing 51 which tapers up- ,wardly and fits the correspondingly-shaped standard.- The sleeve central opening of the sleeve. The sleeve has-two'vertical slots, through which pass the'bolts 53, which are screwed into the said bushing, and serve toclamp the sleeve and the bushing together in any vertical adjustment of the latter. By setting the bushing higher from time to time to take up' the Wear, the .table will be rigidl-ysup orted on the 49-'an the bushing -51 have the slot '54 for the reception of the shaft v66 which .'bracket'60 secured to the bolt to permit the table 50 to rise and fall. The driving shaft is mounted on the .bracket 56 secured tothe bottom of the cam 13 (see Fig. 1), and the'bracket 57 secured to the-bar 11 (see Fig. 3), and carries the long pinion 58 in mesh with the gear 21. The vertical shaft y59 is mounted in the 13 and in the bracket 61 on the table 50, and carries the long pinion 62 in mesh with the gear 31, the long pinion 63 in mesh with gear '42, and the bevel gear 64 in mesh with the bevel gear 65 on thelive spindle or and is mounted on the bracket 61. The

gear wheel 31 has five times the circumference of the pinion 62, but has one-fifth of its teeth omitted as shown on Fig. 10, so that the shaft59`-lnay rest during one-fifth of the rov tation offthe gear 31.

y In order that the gear62 may be intergeared with the gear 31fafter'they have ,become disengaged, I have secured, the'iinger 63 tothe to of the y 31,' whichfingerengages lthe ri 64 on s 'aft 59s'sufliciently in advance of the time when the first tooth of the gear 31 reaches .the

ion as tojcause the proper meshing efgihe bottom of the cam supports the chuck-head 67 'end of the which cofperates with the' cam 34. The upthis bar enters the table 50 and is A per end o provided with an .adjustable collar which gages the vertical position of the roller 69, the collar resting against the bottom of the table or the bushing 70 therein.

- The bar 66 extends above the table 50 and engages the lower sideof one end of the lever 71 mounted on the pin 72 on the table. The remaining end of this lever has its lower side in engagement with the vertical pin 73, pressed upwardly by the spring 74. The lever 71 has the upwardly extending arm 75 which sits between the two adjustable collars 76 on the dead spindle or shaft 77 mounted on thebracket 7S on the table 50 and carrying the chuck-head 79. Above the chucks 4is the rotary knife 7 9, which may be revolved in any approved manner.

` The standard 80 is secured to the bottom of the cam 13 and has secured to its up )er end by lthe bolts 81, the -table 82. his table supports at one end thereof the horizontal shaft 83 having at one end the pulley 84 and at the" other end the pulley 85. The other end of the table 82 carries the pulley 86,` adjustable by means the nut 88. The pulleys 84 and 86 are connected by the flat blank-feeding belt 489 whose-upper side runs 4on the top `of the table 82 parallel with the length of the spin-` dles 66 and 77. To the side of is secured the bottom gage or rest 90 for the blanks, this gage being beneath the chucks and its' surface in' line with the top surface ofthe belt. j n

91 is a blank' pusher which slides on the plate`92 on the table 82.

93 is a side gage for the blanks, against which the belt 89 feeds them. It is secured to the table 82 and supports lthe plate 95, carrying end of the pusher. The rear end of the pusher has secured thereto a llat spring 97 which rides benea'th the roller and has a sharp downward bend 94 just at the rear of the roller when the pusher 1s in its retired position. The pusher moves at a right angle to the belt 89. The pusher is actuated by the vertical lever 98 mounted on the pivot 99. On the lower end of the lever 98 is pivoted the arm '100, carrying the roller 101 which rides in the cam track 29. The lever 98 is in -two parts, the'upper part 102 being mounted on the pivot'1v03 on the lower part. 'The lowerA upper part has secured thereto the rod- 104 whic passes through the standard 80 and has thereon the coil spring 105, seated .ietween the standard and the nut 106 on the rnd.' A Betfsew' 107` passes through the of the screw 87 and IOO the table .8 2

IIO

a-roller 96, overlying the forward lower end of the part 102 and engages the lower or iXed part of the lever 98, in order to adjust the position of the pusher which is pivotally connected to the upper end of the lever 98.

The table 82 is'provided with the sidey strips'107, and 108 on opposite sides of the belt '89, one gage, as 108, being adjustable to accommodate different sizes of blanks. This table also carries the two idle pulleys 109 and 110 and the table 50 carries the idle pulleys 111 and 112, and the shaft 55 carries the drivin pulley 113. The belt 114 runs over the .puley 113 and. then the pulleys 110, 85,

-109, and 111 and back to the pulley 113.

This belt investire but Shaft se. The bar v1.1 has the slot 115 for the -bolt 10, so' that the y ,'site the. untoothed portion of the gear'zll.

The'sleeve, the gear 21, the cam 28, the gear 31', the cam34, the cam 38,.the sleeve 41, the gear 42, thetable and the chucks 67 and 79 will all be lowered, when the chucks will come to rest at such a position above the rest as to be opposite a blank on said rest. The lowering ofthe cam 28 causes the rock ing of the arm on the lever 98 by reason of the action. of the recessed track onA the roller 1.01, the eripheryv of the roller and the upper Wall of t 1e track being beveled to permit such rocking. The cam portion 37 of the flange 36 on the cam 34 will be on the roller 69, causing the chuck 79, to move away farther from the-chuck so as toallow a blank tol" .be received `between them. Upon the starting ofthe driving shaft55, the conveyer belt 89 will cause a cork .blank deposited thereon to be delivered infront of the pusher 91 and against the gage or side piece 93, The I cam 28 o erates then t0 cause the lever 98 to rock an move .the pusher 91 toward the chucks. Avsli ht -movementfof the usher brings the vben .94' of the spring 97 un er the roller 96, 'causing the springto press slightly on the blank to eep it in place to bepassed l properly between the chuck-heads and against the gage 1116.- Thea pressure .of the spring' continues on' the blank allthe waytothe gage 116, owing tothe horizontal portion of the spring at t e rear of the bend 94. 4The cam projection 3.7 of the cam 34 now passes from the roller 69, permitting the sprin 7 4 to move vthe chuck79- against the endo the blank'sn'asto clamp the same jrmly between the? chucks.

spring'105 to move the pusher and thefspri The cam-28 .then permits the rides up from'the depression 16 to the step 17, causing the table 50 together with the chucks to rise. After the chucks have lifted `the blank free from the bed 90, the gear 31 engages the pinion 62, causing the rotationof the chucks and the blank. The knife 79 being already in rotation cuts off the corners of the blank which is square .in cross-section to the depth permitted by the step 17.l During the cutting operation the cam 39 is moving the 'table 50 slightly up and down. This is for the-purpose of cutting the corners of the blank round while thesides are left flat or nearly so.' When the roller`45 is on the elevations 46, the table is raised and the knife 79 cuts nearer the center of the blank; and when the roller is between the elevations, the knife cuts farther from the center of the blank. In the former'position of the roller, the sides of the blank are beingcut; and in the latter, the corners are being cut. When the shaft 59 and therefore the blank has made one revolution, the cam roller 25 rides upon the step 18 and a deeper cut is made in the blank-during another rotation thereof. After the completion of the second 'rotation the roller rides upon the step. 19, causing the knife to take a still dee er cut which is the inishing cut. The blan has two rotations while the roller is on the4 step 19. Justv be- 95 fore the cam 25 1s ready to descend to the de- 'sto' ped Iby the disengagement of the gear 31 an the pinion 62. The roller 25 now rides IOO down in the depression 16 ,causing the chuck L to be lowered ready to receive another blank pushed between them by the pusher 91. f

Fig. 1 shows the cam projection 37 close to the roller 69 ready to open thev chucks, and the roller 25 a short distance from the 'idepression 16 ready to descend into` the same as soon-as the projection 37 has opened the chucks.v

I do not restrict myself to the-precise details and combinations shown and described. I'claim- 1. In a lathe, a cutting tool, a vertical stationary post-like standard, a chuck-table vertically movable thereon, a feeding device IOSl to present the blanks to the chucks, "a chuck f openin and closing device, and cams sleeved on sai lstandard forv raising andv llowering said tableto-y present the blanks in the 'chucks to the cutting'tooLfor controlling the openingand closingof the chucks, and for c'on-V trolling the blank feeding device in combination with means for intermittently rotatingy -th@ hucks.

,s lqlfiQiia'i-y'cutting tool, 'a feeding dcvicebeng saiditool, a airof chucks, a chuck-table Aiin'oyable vertica lyon said standard to carry during mo vable vertically on said standard to carry the blanks from the feeding device to the cu tting -'tool, and means vertically reclprocable and sleeved on said standard for raislng said `*table to carry the blanks to the cutting tool.

4.. In a lathe, a vertical fixed standard, a stationary cutting tool, a feeding device below said tool, a pair of chucks, a chuck-table movable vertically on said standard to carry the blanks from the feeding device to the cutting tool, a sleeve 'on'sai standard, a cam on said standard and co-operating with the sleeve for raising said table to carry the blanks to the cutting tool, and means also sleeved on said standard for raising and lowering saidtable'during the cutting operation.

5. In a lathe, aI vertical fixed standard, a stationaryv cutting tool, a feeding device below said tool, a pair of chucks, achuck-table movable vertically on said standard to carry l the blanks from the feeding device to the cuttingtool, means sleeved and slidable vertically on saidstandard for raising said table to carry theblanks to the cutting tool, and means sleeved on and rotatable about said standard for opening and elosin the chucks. 6. In a lathe, a fixed vert-ica standard, a chuck carrying table movable vertically thereon, a cutteig-,to which the chucks on said table present the blanks'to be cut, `a sleeve encircling said' standard,'and aca-m on said sleeve adaptedto raise and lower said table l the cutting operation to vary the depth of the cut. y Y

7. In a lathe, a fixed vertical standard, a chuck-carrying table sup orted thereon, a cam rotatable around saidJ standard', a feeding table, means on said table to place the "blanks between the chucks, and operating connections between saidcam and said placing means. l

55 being operatively connected to said cam, and

8. In a-la'the, a fixed vertical standard, a pair of chucks supported thereby, a cam rotatable around said standard as a center, va lever for closing the chucks, a pair of reeip# rocable rods, one being in engagement with said lever to actuatev the same and the other a rocking lever connecting said rods.

9. In a lathe, a fixed vertical standard, a stationary cutter, a blank feeder below the cutter, twosleeves rotatable and slidable on' o the standard, a pair of chucks, a table supported'by the sleeves, slidable on the standard, and supporting the chucks, means for raising both sleeves to cause the chucks to raise a blank from the feeding device to the cutter, and means for independently raising and lowering the u per sleeve to vary the depth of the cut of t 1e cutter in the blank.

10. In a lathe, a fixed vertical standard, a stationary cutter, a blank feeder below the cutter,` a pair of chucks, a table supporting the lchucks and slidable on the standard, means on the standard for raising the chucks with a blank from the feeding device to the cutter, and other meanson the standard for varying the depth of the cut in the blank.

11. In a lathe, a fixed vertical standard, a pair of chucks, a druck-supporting table movable vertically on said standard, means for opening and closing the chucks, means rotatable on the standard for raising and lowering the chucks, a shaft for rotating the chucks, a driven uear thereon, a driving gear rotatable and slidablevon said standard and meshing with the said driven gear, a portion of the teeth on the driving gear being omitted, and means on said. two gears to advance the driven gear so that both gears may accurately mesh when the first tooth of the driving gear engages the driven gear.

1'2. In a lathe, a verticfil standard, a chuck carrying table vertically movable thereon, a sleeve slidable and rotatable on said standard for raising and lowering said table, a cam secured to said sleeve, a feedling device to present the blanks to the chucks,

nection between said cam and said lever movable up anddown 1n operative engage-y mentwith said cam, and means .permitting the lower `end of the lever to move While the -vother end remains stationary. o Signed at Wilkinsburg, Paathis 22 day 0f September, 1906. y 4 r o a A FRANK JBARNETT. .l/Vitnesses: l f 'i l ,Y E. I. CREELMAN,

. v D. S. FULLERTON., 'A I IOO IOS

IIO 

